Insole for shoes



y 1930. A. F. DONOVAN 1,760,300

INSOLE FOR snobs Filed Nov. 8. 1927 NTOR v mw/vm 5MATTORNEY Patented May 27, 1930 ALFBED F. DONOVAN, OF BOSTON, MASSACHUSETTS INSOLE FOR SHOES.

Application filed .November 8, 1927. Serial No. 231,869.

Among the principal objects which the present invention has in view are: to provide an insole of the character mentioned with increased thicknesses distributed in accordance 5 with the needs of the wearer; to provide said thicknesses in such manner as to facilitate the removal or replacement thereof in the shoe during service; and to simplify and cheapen the construction.

Figure 1 is a top plan view of an insole constructed and arranged in accordance with the present invention.

Figure 2 is an edge view thereof. 1

Figure 3 isa detail view showing a thick- 16 ening pad such as is employed in the present invention.

Figure 4 is a cross section of the inner sole, the section being taken on the line 4-4 in Figure 1. I 2 Figure 5 is a section of said insole, the section being taken on the line 55 in Figure 1.

Heretofore, insoles for shoes have been constructed from flat pieces of leather, more orless limp or flexible in character resembling their final appearance in so far as the outline or shape of the sole is concerned.

In the present invention the insole is molded to provide an elevation 11 which in the completed shoe corresponds with the location of the metatarsal arch of the foot.-

The elevation 11 has rather sharp upturned sides 12 constructed and arranged to accommodate the shoe last on which the shoe is to be constructed, the said lasthaving an excavated portion as in conformity with the patent granted to Charles Henry Brown under date of August 21, 1917, Number 1237,464. The insole 10 has also impressed therein a central valley 13 which affords a bending line for the insole when being adjusted to a shank iron constructed and arranged in accordance with the disclosure in the patent granted to Charles Henry Brown No. 1,249,318, December 11, 1917.

Prior to molding the insole 10, pads such as indicated by the numeral 14 are adhered in fixed relation and superposed on the said insole as shown best in Figure ings. The pads 14 are preferably skived to fade the thin'edg'e of the pad into the insole without forming a rid e. The outer edge 15 of the pad is of a-heig t designed to correct the'tread action of the foot when walking in the shoe. v

4 Many persons, through carelessness or from characteristic, have the tendency to roll the foot inward. When thisis found to be the condition in any particular case, the pad 14 is placed adjacent to the heel of the wearer and in-such position in relation thereto to tend to throw the foot in opposition to the rolling tendency referred to.

While I have herein disclosed a particular shape of pad and an ascertained location thereof, it will be understood that the shape, 5 construction, and disposition can be varied to suit the exigencies of different feet. In all cases, however, in conformity with the present invention, the pad will be wedge-shaped, the purpose being to turn the foot in the action of walking and to offset incorrect rolling dispositions thereof.

The pads 14 are disposed on the upper surface of the insole and are preferably adhered thereto so as to permit the removal thereof for replacement for adjustment to accommodate idiosyncrasies of the foot to which it is to be applied.

The pads are thickened at the outer edge of the sole and in line with the edge of the sole, and are skived or cut away to fade into the upper surface of the sole, thus avoiding any disagreeable ridge at the junction of the pad and sole.

An insole constructed of relatively rigid material molded to provide an elevated area disposed coincident with the metatarsal arch of the human footand having an elevated area disposed at one side of the center of the heel portion of the foot and a central valley portion extended lengthwise of the shank portion of the insole and between the two said elevated areas for controlling the bend of the insole belowthe arch of the human foot.

ALFRED F. DONOVAN.

1 of the draw 

